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Bhowmik R, Roy M. Recent advances on the development of NO-releasing molecules (NORMs) for biomedical applications. Eur J Med Chem 2024; 268:116217. [PMID: 38367491 DOI: 10.1016/j.ejmech.2024.116217] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2023] [Revised: 02/02/2024] [Accepted: 02/02/2024] [Indexed: 02/19/2024]
Abstract
Nitric oxide (NO) is an important biological messenger as well as a signaling molecule that participates in a broad range of physiological events and therapeutic applications in biological systems. However, due to its very short half-life in physiological conditions, its therapeutic applications are restricted. Efforts have been made to develop an enormous number of NO-releasing molecules (NORMs) and motifs for NO delivery to the target tissues. These NORMs involve organic nitrate, nitrite, nitro compounds, transition metal nitrosyls, and several nanomaterials. The controlled release of NO from these NORMs to the specific site requires several external stimuli like light, sound, pH, heat, enzyme, etc. Herein, we have provided a comprehensive review of the biochemistry of nitric oxide, recent advancements in NO-releasing materials with the appropriate stimuli of NO release, and their biomedical applications in cancer and other disease control.
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Affiliation(s)
- Rintu Bhowmik
- Department of Chemistry, National Institute of Technology Manipur, Langol, 795004, Imphal West, Manipur, India
| | - Mithun Roy
- Department of Chemistry, National Institute of Technology Manipur, Langol, 795004, Imphal West, Manipur, India.
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2
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Shen Y, Li N, Sun S, Dong L, Wang Y, Chang L, Zhang X, Wang F. Non-invasive, targeted, and non-viral ultrasound-mediated brain-derived neurotrophic factor plasmid delivery for treatment of autism in a rat model. Front Neurosci 2022; 16:986571. [PMID: 36117626 PMCID: PMC9475200 DOI: 10.3389/fnins.2022.986571] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Accepted: 08/16/2022] [Indexed: 11/17/2022] Open
Abstract
Autism has clinical manifestations such as social interaction disorder, speech and intellectual development disorder, narrow interest range, and stereotyped and repetitive behavior, all of which bring considerable economic and mental burden to society and families, and represent a public health problem requiring urgent attention. Brain-derived neurotrophic factor (BDNF) plays an important role in supporting survival, differentiation, growth, and synapse formation of neurons and participates in the plasticity of nerves. However, it is difficult for BDNF to penetrate the blood-brain barrier (BBB) due to its large molecular weight. Low-frequency focused ultrasound (FUS) combined with microbubbles (MBs) has been demonstrated to be a promising method for opening the BBB non-invasively, transiently, and locally. Here, we studied the therapeutic effect of FUS combined with BDNF plasmid-loaded cationic microbubbles (BDNFp-CMBs) in a rat model of autism. BDNF-CMBs were prepared and the transfection efficiency of FUS combined with BDNF-CMBs was tested in vitro. A rat model of autism was established from the juvenile male offspring of Sprague-Dawley (SD) pregnant rats treated with sodium valproate (VPA) solution through intraperitoneal injection. The autism rats were randomized into three groups: the VPA group, which received no treatment, the BDNFp group, which was treated by injection of BDNFp, and the FUS + BDNFp-CMBs group, which was administered FUS combined with BDNFp-CMBs. Age-matched normal rats served as the control group (Con). Following treatment, stereotyped, exploratory, and social–behavioral tests were performed on the animals in each group. The rat brains were then collected for subsequent histological examination, and the changes in synaptic structures in the prefrontal cortex (PFC) were detected under transmission electron microscopy. The results showed that the constructed BDNFp could be loaded onto CMBs with high loading efficiency. The BDNFp-CMBs prepared in this study showed good stability in vivo. FUS combined BDNFp-CMBs could effectively and non-invasively open the BBB of rats. The stereotyped, exploratory, and social behaviors of the FUS + BDNFp-CMBs group were significantly improved. Compared to the VPA group, the abnormality of neuronal morphology and number in the PFC of the FUS + BDNFp-CMBs was alleviated to a certain extent and was accompanied by restoration of the damaged synapses in the encephalic region. Our work demonstrates the positive therapeutic effect of BDNF delivered by FUS non-invasively across the BBB into the PFC in a rat model of autism, offering a potential strategy for treating autism.
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Affiliation(s)
- Yuanyuan Shen
- National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, Health Science Center, School of Biomedical Engineering, Shenzhen University, Shenzhen, China
| | - Nana Li
- Henan Key Laboratory of Medical Tissue Regeneration, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Shuneng Sun
- National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, Health Science Center, School of Biomedical Engineering, Shenzhen University, Shenzhen, China
| | - Lei Dong
- Henan Key Laboratory of Medical Tissue Regeneration, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Yongling Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
| | - Liansheng Chang
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
- *Correspondence: Liansheng Chang,
| | - Xinyu Zhang
- National-Regional Key Technology Engineering Laboratory for Medical Ultrasound, Health Science Center, School of Biomedical Engineering, Shenzhen University, Shenzhen, China
- Xinyu Zhang,
| | - Feng Wang
- Henan Key Laboratory of Medical Tissue Regeneration, School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang, China
- Feng Wang,
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Kang Z, Yang M, Feng X, Liao H, Zhang Z, Du Y. Multifunctional Theranostic Nanoparticles for Enhanced Tumor Targeted Imaging and Synergistic FUS/Chemotherapy on Murine 4T1 Breast Cancer Cell. Int J Nanomedicine 2022; 17:2165-2187. [PMID: 35592098 PMCID: PMC9113557 DOI: 10.2147/ijn.s360161] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Accepted: 05/01/2022] [Indexed: 11/30/2022] Open
Abstract
Purpose Triple negative breast cancer (TNBC) is challenging for effective remission due to its very aggressive, extremely metastatic and resistant to conventional chemotherapy. Herein, a multifunctional theranostic nanoparticle was fabricated to enhance tumor targeted imaging and promote focused ultrasound (FUS) ablation and chemotherapy and sonodynamic therapy (SDT). A multi-modal synergistic therapy can improve the therapeutic efficacy and prognosis of TNBC. Methods AS1411 aptamer modified PEG@PLGA nanoparticles encapsulated with perfluorohexane (PFH) and anti-cancer drug doxorubicin (DOX) were constructed (AS1411-DOX/PFH-PEG@PLGA) to enhance tumor targeted imaging to guide ablation and synergistic effect of FUS/chemotherapy. FUS was utilized to trigger the co-release of doxorubicin and simultaneously PFH phase transition and activate DOX for SDT effect. The physicochemical, phase-changeable imaging capability, biosafety of nanoparticles and multi-mode synergistic effects on growth of TNBC were thoroughly evaluated in vivo and in vitro. Results The synthesized AS1411-DOX/PFH-PEG@PLGA (A-DPPs) nanoparticles are uniformly round with an average diameter of 306.03 ± 5.35 nm and the zeta potential of −4.05 ± 0.13 mV, displaying high biosafety and FUS-responsive drug release in vitro and in vivo. AS1411 modified NPs specifically bind to 4T1 cells and elevate the ultrasound contrast agent (UCA) image contrast intensity via PFH phase-transition after FUS exposure. Moreover, the combined treatment of A-DPPs nanoparticles with FUS exhibited significantly higher apoptosis rate, stronger inhibitory effect on 4T1 cell invasion in vitro, induced more reactive oxygen species (ROS), and enhanced anti-tumor effect compared to a single therapy (p < 0.05). Additionally, the joint strategy resulted in more intense cavitation effect and larger ablated areas and reduced energy efficiency factor (EEF) both in vitro and in vivo. Conclusion The multifunctional AS1411-DOX/PFH-PEG@PLGA nanoparticles can perform as a marvelous synergistic agent for enhanced FUS/chemotherapy, promote real-time contrast enhanced US imaging and improve the therapeutic efficacy and prognosis of TNBC.
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Affiliation(s)
- Zhengyue Kang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, People’s Republic of China
- Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, People’s Republic of China
| | - Min Yang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, People’s Republic of China
- Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, People’s Republic of China
| | - Xiaoling Feng
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, People’s Republic of China
- Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, People’s Republic of China
| | - Hongjian Liao
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, People’s Republic of China
- Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, People’s Republic of China
| | - Zhifei Zhang
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, People’s Republic of China
- Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, People’s Republic of China
| | - Yonghong Du
- State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, People’s Republic of China
- Chongqing Key Laboratory of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, People’s Republic of China
- Correspondence: Yonghong Du, State Key Laboratory of Ultrasound in Medicine and Engineering, College of Biomedical Engineering, Chongqing Medical University, Chongqing, 400016, People’s Republic of China, Tel/Fax +86-23-68485021, Email
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Sun S, Wang P, Sun S, Liang X. Applications of Micro/Nanotechnology in Ultrasound-based Drug Delivery and Therapy for Tumor. Curr Med Chem 2021; 28:525-547. [PMID: 32048951 DOI: 10.2174/0929867327666200212100257] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 12/30/2019] [Accepted: 01/13/2020] [Indexed: 11/22/2022]
Abstract
Ultrasound has been broadly used in biomedicine for both tumor diagnosis as well as therapy. The applications of recent developments in micro/nanotechnology promote the development of ultrasound-based biomedicine, especially in the field of ultrasound-based drug delivery and tumor therapy. Ultrasound can activate nano-sized drug delivery systems by different mechanisms for ultrasound- triggered on-demand drug release targeted only at the tumor sites. Ultrasound Targeted Microbubble Destruction (UTMD) technology can not only increase the permeability of vasculature and cell membrane via sonoporation effect but also achieve in situ conversion of microbubbles into nanoparticles to promote cellular uptake and therapeutic efficacy. Furthermore, High Intensity Focused Ultrasound (HIFU), or Sonodynamic Therapy (SDT), is considered to be one of the most promising and representative non-invasive treatment for cancer. However, their application in the treatment process is still limited due to their critical treatment efficiency issues. Fortunately, recently developed micro/nanotechnology offer an opportunity to solve these problems, thus improving the therapeutic effect of cancer. This review summarizes and discusses the recent developments in the design of micro- and nano- materials for ultrasound-based biomedicine applications.
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Affiliation(s)
- Suhui Sun
- Department of Ultrasound, Peking University Third Hospital, Beijing, China
| | - Ping Wang
- Department of Ultrasound, Peking University Third Hospital, Beijing, China
| | - Sujuan Sun
- Ordos Center Hospital, Ordos 017000, Inner Mongolia, China
| | - Xiaolong Liang
- Department of Ultrasound, Peking University Third Hospital, Beijing, China
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Wang M, Hou Z, Liu S, Liang S, Ding B, Zhao Y, Chang M, Han G, Kheraif AAA, Lin J. A Multifunctional Nanovaccine based on L-Arginine-Loaded Black Mesoporous Titania: Ultrasound-Triggered Synergistic Cancer Sonodynamic Therapy/Gas Therapy/Immunotherapy with Remarkably Enhanced Efficacy. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2005728. [PMID: 33470521 DOI: 10.1002/smll.202005728] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2020] [Revised: 12/10/2020] [Indexed: 06/12/2023]
Abstract
In order to achieve better antitumor therapeutic efficacy and inhibit tumor metastasis, a multifunctional nanovaccine based on L-arginine (LA)-loaded black mesoporous titania (BMT) is fabricated. In this system, LA is utilized as the exogenous NO supplementation for gas therapy, and BMT is served as acoustic sensitizer for sonodynamic therapy. The ultrasound (US) as the exogenous stimulus can simultaneously trigger BMT and LA to produce singlet oxygen (1 O2 ) and NO gas at tumor sites, respectively. Interestingly, 1 O2 from US-excited BMT can promote the oxidation of LA to produce more NO. The high concentration of 1 O2 and NO in cancer cell can cause intracellular strong oxidative stress level and DNA double-strand breaks to induce cancer cell apoptosis ultimately. The US-triggered BMT@LA "nanovaccine" combining with immune checkpoint inhibitor PD-L1 antibody (αPD-L1) can induce strong antitumor immune response thus effectively killing primary tumors and further inhibiting metastatic tumors. Hence, BMT@LA-based "nanovaccine" combining with αPD-L1 checkpoint blockade treatment can realize synergetic sonodynamic/gas/immunotherapy with enhanced antitumor therapeutic effects.
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Affiliation(s)
- Meifang Wang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Zhiyao Hou
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- Department of Abdominal Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University, Guangzhou, 510095, P. R. China
- Guangzhou Municipal and Guangdong Provincial Key Laboratory of Protein Modification and Degradation, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou, 511436, P. R. China
| | - Sainan Liu
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Shuang Liang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Binbin Ding
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
| | - Yajie Zhao
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Mengyu Chang
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
| | - Gang Han
- Department of Biochemistry and Molecular Pharmacology, University of Massachusetts Medical School, Worcester, MA, 01605, USA
| | - Abdulaziz A Al Kheraif
- Dental Health Department, College of Applied Medical Sciences, King Saud University, Riyadh, 12372, Saudi Arabia
| | - Jun Lin
- State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, 130022, P. R. China
- School of Applied Chemistry and Engineering, University of Science and Technology of China, Hefei, 230026, P. R. China
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Snehota M, Vachutka J, Ter Haar G, Dolezal L, Kolarova H. Therapeutic ultrasound experiments in vitro: Review of factors influencing outcomes and reproducibility. ULTRASONICS 2020; 107:106167. [PMID: 32402858 DOI: 10.1016/j.ultras.2020.106167] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 04/16/2020] [Accepted: 04/23/2020] [Indexed: 05/07/2023]
Abstract
Current in vitro sonication experiments show immense variability in experimental set-ups and methods used. As a result, there is uncertainty in the ultrasound field parameters experienced by sonicated samples, poor reproducibility of these experiments and thus reduced scientific value of the results obtained. The scope of this narrative review is to briefly describe mechanisms of action of ultrasound, list the most frequently used experimental set-ups and focus on a description of factors influencing the outcomes and reproducibility of these experiments. The factors assessed include: proper reporting of ultrasound exposure parameters, experimental geometry, coupling medium quality, influence of culture vessels, formation of standing waves, motion/rotation of the sonicated sample and the characteristics of the sample itself. In the discussion we describe pros and cons of particular exposure geometries and factors, and make a few recommendations as to how to increase the reproducibility and validity of the experiments performed.
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Affiliation(s)
- Martin Snehota
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hnevotinska 3, Olomouc 775 15, Czech Republic; Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hnevotinska 5, Olomouc 779 00, Czech Republic
| | - Jaromir Vachutka
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hnevotinska 3, Olomouc 775 15, Czech Republic.
| | - Gail Ter Haar
- Joint Department of Physics and Cancer Research UK Cancer Imaging Centre, Division of Radiotherapy and Imaging, The Institute of Cancer Research, London and The Royal Marsden NHS Foundation Trust, Sutton, London SM2 5PT, United Kingdom
| | - Ladislav Dolezal
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hnevotinska 3, Olomouc 775 15, Czech Republic
| | - Hana Kolarova
- Department of Medical Biophysics, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hnevotinska 3, Olomouc 775 15, Czech Republic; Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University Olomouc, Hnevotinska 5, Olomouc 779 00, Czech Republic
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7
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Ilovitsh T, Feng Y, Foiret J, Kheirolomoom A, Zhang H, Ingham ES, Ilovitsh A, Tumbale SK, Fite BZ, Wu B, Raie MN, Zhang N, Kare AJ, Chavez M, Qi LS, Pelled G, Gazit D, Vermesh O, Steinberg I, Gambhir SS, Ferrara KW. Low-frequency ultrasound-mediated cytokine transfection enhances T cell recruitment at local and distant tumor sites. Proc Natl Acad Sci U S A 2020; 117:12674-12685. [PMID: 32430322 PMCID: PMC7293655 DOI: 10.1073/pnas.1914906117] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Robust cytotoxic T cell infiltration has proven to be difficult to achieve in solid tumors. We set out to develop a flexible protocol to efficiently transfect tumor and stromal cells to produce immune-activating cytokines, and thus enhance T cell infiltration while debulking tumor mass. By combining ultrasound with tumor-targeted microbubbles, membrane pores are created and facilitate a controllable and local transfection. Here, we applied a substantially lower transmission frequency (250 kHz) than applied previously. The resulting microbubble oscillation was significantly enhanced, reaching an effective expansion ratio of 35 for a peak negative pressure of 500 kPa in vitro. Combining low-frequency ultrasound with tumor-targeted microbubbles and a DNA plasmid construct, 20% of tumor cells remained viable, and ∼20% of these remaining cells were transfected with a reporter gene both in vitro and in vivo. The majority of cells transfected in vivo were mucin 1+/CD45- tumor cells. Tumor and stromal cells were then transfected with plasmid DNA encoding IFN-β, producing 150 pg/106 cells in vitro, a 150-fold increase compared to no-ultrasound or no-plasmid controls and a 50-fold increase compared to treatment with targeted microbubbles and ultrasound (without IFN-β). This enhancement in secretion exceeds previously reported fourfold to fivefold increases with other in vitro treatments. Combined with intraperitoneal administration of checkpoint inhibition, a single application of IFN-β plasmid transfection reduced tumor growth in vivo and recruited efficacious immune cells at both the local and distant tumor sites.
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Affiliation(s)
- Tali Ilovitsh
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
- Department of Biomedical Engineering, University of California, Davis, CA 95616
| | - Yi Feng
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
- Department of Biomedical Engineering, Xi'an Jiaotong University, Xi'an 710049, People's Republic of China
| | - Josquin Foiret
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
| | - Azadeh Kheirolomoom
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
- Department of Biomedical Engineering, University of California, Davis, CA 95616
| | - Hua Zhang
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
- Department of Biomedical Engineering, University of California, Davis, CA 95616
| | - Elizabeth S Ingham
- Department of Biomedical Engineering, University of California, Davis, CA 95616
| | - Asaf Ilovitsh
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
- Department of Biomedical Engineering, University of California, Davis, CA 95616
| | - Spencer K Tumbale
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
| | - Brett Z Fite
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
| | - Bo Wu
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
| | - Marina N Raie
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
| | - Nisi Zhang
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
| | - Aris J Kare
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
- Department of Bioengineering, Stanford University, Stanford, CA 94305
| | - Michael Chavez
- Department of Bioengineering, Stanford University, Stanford, CA 94305
| | - Lei S Qi
- Department of Bioengineering, Stanford University, Stanford, CA 94305
| | - Gadi Pelled
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Dan Gazit
- Department of Surgery, Cedars-Sinai Medical Center, Los Angeles, CA 90048
- Board of Governors Regenerative Medicine Institute, Cedars-Sinai Medical Center, Los Angeles, CA 90048
| | - Ophir Vermesh
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
| | - Idan Steinberg
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
| | - Sanjiv S Gambhir
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305
- Department of Radiology, Stanford University, Stanford, CA 94305
| | - Katherine W Ferrara
- Molecular Imaging Program at Stanford, Stanford University, Stanford, CA 94305;
- Department of Radiology, Stanford University, Stanford, CA 94305
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8
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Mérida F, Rinaldi C, Juan EJ, Torres-Lugo M. In vitro Ultrasonic Potentiation of 2-Phenylethynesulfonamide/Magnetic Fluid Hyperthermia Combination Treatments for Ovarian Cancer. Int J Nanomedicine 2020; 15:419-432. [PMID: 32021188 PMCID: PMC6982443 DOI: 10.2147/ijn.s217870] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Accepted: 09/25/2019] [Indexed: 01/15/2023] Open
Abstract
Background Magnetic Fluid Hyperthermia (MFH) is a promising adjuvant for chemotherapy, potentiating the action of anticancer agents. However, drug delivery to cancer cells must be optimized to improve the overall therapeutic effect of drug/MFH combination treatments. Purpose The aim of this work was to demonstrate the potentiation of 2-phenylethynesulfonamide (PES) at various combination treatments with MFH, using low-intensity ultrasound as an intracellular delivery enhancer. Methods The effect of ultrasound (US), MFH, and PES was first evaluated individually and then as combination treatments. Definity® microbubbles and polyethylene glycol (PEG)-coated iron oxide nanoparticles were used to induce cell sonoporation and MFH, respectively. Assessment of cell membrane permeabilization was evaluated via fluorescence microscopy, iron uptake by cells was quantified by UV-Vis spectroscopy, and cell viability was determined using automatic cell counting. Results Notable reductions in cancer cell viability were observed when ultrasound was incorporated. For example, the treatment US+PES reduced cell viability by 37% compared to the non-toxic effect of the drug. Similarly, the treatment US+MFH using mild hyperthermia (41°C), reduced cell viability by an additional 18% when compared to the effect of MH alone. Significant improvements were observed for the combination of US+PES+MFH with cell viability reduced by an additional 26% compared to the PES+MFH group. The improved cytotoxicity was attributed to enhanced drug/nanoparticle intracellular delivery, with iron uptake values nearly twice those achieved without ultrasound. Various treatment schedules were examined, and all of them showed substantial cell death, indicating that the time elapsed between sonoporation and magnetic field exposure was not significant. Conclusion Superior cancer cell-killing patterns took place when ultrasound was incorporated thus demonstrating the in vitro ultrasonic potentiation of PES and mild MFH. This work demonstrated that ultrasound is a promising non-invasive enhancer of PES/MFH combination treatments, aiming to establish a sono-thermo-chemotherapy in the treatment of ovarian cancer.
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Affiliation(s)
- Fernando Mérida
- Department of Chemical Engineering, University of Puerto Rico-Mayagüez, Mayagüez, Puerto Rico
| | - Carlos Rinaldi
- Department of Chemical Engineering, University of Florida, Gainesville, FL, USA.,J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Gainesville, FL, USA
| | - Eduardo J Juan
- Department of Electrical and Computer Engineering, University of Puerto Rico-Mayagüez, Mayagüez, Puerto Rico
| | - Madeline Torres-Lugo
- Department of Chemical Engineering, University of Puerto Rico-Mayagüez, Mayagüez, Puerto Rico
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9
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Basha SA, Salkho N, Dalibalta S, Husseini GA. Liposomes in Active, Passive and Acoustically-Triggered Drug Delivery. Mini Rev Med Chem 2019; 19:961-969. [PMID: 30961495 DOI: 10.2174/1389557519666190408155251] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2017] [Revised: 02/17/2018] [Accepted: 11/06/2018] [Indexed: 12/23/2022]
Abstract
Cancer has become one of the most deadly noncommunicable diseases globally. Several modalities used to treat cancer patients exist today yet many have failed to prove high efficacy with low side effects. The most common example of such modalities is the use of chemotherapeutic drugs to treat cancerous cells and deter their uncontrolled proliferation. In addition to the destruction of cancerous tissues, chemotherapy destroys healthy tissues as it lacks the specificity to annihilate cancerous cells only and preferentially, which result in adverse side effects including nausea, hair fall and myocardial infarction. To prevent the side effects of non-selective chemotherapy, cancer therapy research has been focused on the implementation of nanocarrier systems that act as vehicles to encapsulate drugs and selectively transport their agent to the tumor site. In this paper, we shed light on liposomes along with three anticancer drug delivery approaches: passive, active and ultrasound-triggered drug delivery.
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Affiliation(s)
- Sara Al Basha
- Department of Chemistry, Biology and Environmental Sciences, American University of Sharjah, Sharjah, United Arab Emirates
| | - Najla Salkho
- Department of Chemical Engineering, American University of Sharjah, Sharjah, United Arab Emirates
| | - Sarah Dalibalta
- Department of Chemistry, Biology and Environmental Sciences, American University of Sharjah, Sharjah, United Arab Emirates
| | - Ghaleb Adnan Husseini
- Department of Chemical Engineering, American University of Sharjah, Sharjah, United Arab Emirates
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10
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Abou Ali E, Bordacahar B, Mestas JL, Batteux F, Lafon C, Camus M, Prat F. Ultrasonic cavitation induces necrosis and impairs growth in three-dimensional models of pancreatic ductal adenocarcinoma. PLoS One 2018; 13:e0209094. [PMID: 30596678 PMCID: PMC6312319 DOI: 10.1371/journal.pone.0209094] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Accepted: 11/28/2018] [Indexed: 01/05/2023] Open
Abstract
INTRODUCTION Pancreatic ductal adenocarcinoma (PDAC) is a rapidly increasing cause of mortality whose dismal prognosis is mainly due to overwhelming chemoresistance. New therapeutic approaches include physical agents such as ultrasonic cavitation, but clinical applications require further insights in the mechanisms of cytotoxicity. 3-D in vitro culture models such as spheroids exploit realistic spatial, biochemical and cellular heterogeneity that may bridge some of the experimental gap between conventional in vitro and in vivo experiments. PURPOSE To assess the feasibility and efficiency of inertial cavitation associated or not with chemotherapy, in a spheroid model of PDAC. METHODS We used DT66066 cells, derived from a genetically-engineered murine PDAC, isolated from KPC-transgenic mice (LSL-KrasG12D/+; LSL-Trp53R172H/+; Pdx-1- Cre). Spheroids were obtained by either a standard centrifugation-based method, or by using a magnetic nano-shuttle method allowing the formation of spheroids within 24 hours and facilitating their handling. The spheroids were exposed to ultrasonic inertial cavitation in a specially designed setup. Eight or nine spheroids were analyzed for each of 4 conditions: control, gemcitabine alone, US cavitation alone, US cavitation + gemcitabine. Five US inertial cavitation indexes, corresponding to increased US intensities, were evaluated. The effectiveness of treatment was assessed after 24 hours with the following criteria: spheroid size (growth), ratio of phase S-entered cells (proliferation), proportion of cells in apoptosis or necrosis (mortality). These parameters were assessed by quantitative immunofluorescence techniques. RESULTS The 3D culture model presented excellent reproducibility. Cavitation induced a significant decrease in the size of spheroids, an effect significantly correlated to an increasing cavitation index (p < 0.0001). The treatment induced cell death whose predominant mechanism was necrosis (p < 0.0001). There was a tendency to a synergistic effect of US cavitation and gemcitabine at 5μM concentration, however significant in only one of the cavitation indexes used (p = 0. 013). CONCLUSION Ultrasonic inertial cavitation induced a significant reduction of tumor growth in a spheroid model of PDAC., with necrosis rather than apoptosis as a Cell dominant mechanism of cell death. More investigations are needed to understand the potential role of inertial cavitation in overcoming chemoresistance.
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MESH Headings
- Animals
- Antimetabolites, Antineoplastic/pharmacology
- Apoptosis/drug effects
- Carcinoma, Pancreatic Ductal/metabolism
- Carcinoma, Pancreatic Ductal/pathology
- Cell Culture Techniques
- Cell Line, Tumor
- Cell Proliferation/drug effects
- Deoxycytidine/analogs & derivatives
- Deoxycytidine/pharmacology
- Mice
- Mice, Transgenic
- Microscopy, Fluorescence
- Models, Biological
- Necrosis
- Oxidative Stress/drug effects
- Pancreatic Neoplasms/metabolism
- Pancreatic Neoplasms/pathology
- Sonication
- Spheroids, Cellular/cytology
- Spheroids, Cellular/drug effects
- Spheroids, Cellular/metabolism
- Gemcitabine
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Affiliation(s)
- Einas Abou Ali
- Cochin Hospital, Gastroenterology and Endoscopy Department, Paris, France
- Cochin Institute, Paris, France
| | - Benoit Bordacahar
- Cochin Hospital, Gastroenterology and Endoscopy Department, Paris, France
- Cochin Institute, Paris, France
| | - Jean-Louis Mestas
- Inserm, U1032, LabTau, Lyon, France; Université de Lyon, Lyon, France
| | - Frederic Batteux
- Cochin Institute, Paris, France
- Paris Descartes University, Paris, France
| | - Cyril Lafon
- Inserm, U1032, LabTau, Lyon, France; Université de Lyon, Lyon, France
| | - Marine Camus
- Cochin Hospital, Gastroenterology and Endoscopy Department, Paris, France
- Cochin Institute, Paris, France
- Paris Descartes University, Paris, France
| | - Frederic Prat
- Cochin Hospital, Gastroenterology and Endoscopy Department, Paris, France
- Cochin Institute, Paris, France
- Paris Descartes University, Paris, France
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11
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Wu M, Zhao H, Guo L, Wang Y, Song J, Zhao X, Li C, Hao L, Wang D, Tang J. Ultrasound-mediated nanobubble destruction (UMND) facilitates the delivery of A10-3.2 aptamer targeted and siRNA-loaded cationic nanobubbles for therapy of prostate cancer. Drug Deliv 2018; 25:226-240. [PMID: 29313393 PMCID: PMC6058493 DOI: 10.1080/10717544.2017.1422300] [Citation(s) in RCA: 69] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
The Forkhead box M1 (FoxM1) transcription factor is an important anti-tumor target. A novel targeted ultrasound (US)-sensitive nanobubble that is likely to make use of the physical energy of US exposure for the improvement of delivery efficacy to target tumors and specifically silence FoxM1 expression appears as among the most potential nanocarriers in respect of drug delivery. In this study, we synthesized a promising anti-tumor targeted FoxM1 siRNA-loaded cationic nanobubbles (CNBs) conjugated with an A10-3.2 aptamer (siFoxM1-Apt-CNBs), which demonstrate high specificity when binding to prostate-specific membrane antigen (PSMA) positive LNCaP cells. Uniform nanoscaled siFoxM1-Apt-CNBs were developed using a thin-film hydration sonication, carbodiimide chemistry approaches, and electrostatic adsorption methods. Fluorescence imaging as well as flow cytometry evidenced the fact that the siFoxM1-Apt-CNBs were productively developed and that they specifically bound to PSMA-positive LNCaP cells. siFoxM1-Apt-CNBs combined with ultrasound-mediated nanobubble destruction (UMND) significantly improved transfection efficiency, cell apoptosis, and cell cycle arrest in vitro while reducing FoxM1 expression. In vivo xenografts tumors in nude-mouse model results showed that siFoxM1-Apt-CNBs combined with UMND led to significant inhibition of tumor growth and prolonged the survival of the mice, with low toxicity, an obvious reduction in FoxM1 expression, and a higher apoptosis index. Our study suggests that siFoxM1-Apt-CNBs combined with UMND might be a promising targeted gene delivery strategy for therapy of prostate cancer.
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Affiliation(s)
- Meng Wu
- a Department of Ultrasound , Chinese PLA General Hospital , Beijing , China.,b School of Medicine , Nankai University , Tianjin , China
| | - Hongyun Zhao
- c Department of Gastroenterology , The Second Affiliated Hospital of Chongqing Medical University & Chongqing Key Laboratory of Ultrasound Molecular Imaging , Chongqing , China
| | - Liang Guo
- a Department of Ultrasound , Chinese PLA General Hospital , Beijing , China
| | - Yiru Wang
- a Department of Ultrasound , Chinese PLA General Hospital , Beijing , China
| | - Jiao Song
- d Department of Obstetrics and Gynecology , The Second Affiliated Hospital of Chongqing Medical University , Chongqing , China
| | - Xueli Zhao
- e Ultrasound Department , Xijing Hospital, Fourth Military Medical University , Xi'an , China
| | - Chongyan Li
- f State Key Laboratory of Ultrasound Engineering in Medicine Co-Founded by Chongqing and the Ministry of Science and Technology , Chongqing Medical University , Chongqing , China
| | - Lan Hao
- g Chongqing Key Laboratory of Ultrasound Molecular Imaging , The Second Affiliated Hospital of Chongqing Medical University , Chongqing , China
| | - Dong Wang
- h Department of Ultrasound , The First Affiliated Hospital of Chongqing Medical University , Chongqing , China
| | - Jie Tang
- a Department of Ultrasound , Chinese PLA General Hospital , Beijing , China
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12
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Cao Y, Chen Y, Yu T, Guo Y, Liu F, Yao Y, Li P, Wang D, Wang Z, Chen Y, Ran H. Drug Release from Phase-Changeable Nanodroplets Triggered by Low-Intensity Focused Ultrasound. Am J Cancer Res 2018; 8:1327-1339. [PMID: 29507623 PMCID: PMC5835939 DOI: 10.7150/thno.21492] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2017] [Accepted: 11/14/2017] [Indexed: 12/19/2022] Open
Abstract
Background: As one of the most effective triggers with high tissue-penetrating capability and non-invasive feature, ultrasound shows great potential for controlling the drug release and enhancing the chemotherapeutic efficacy. In this study, we report, for the first time, construction of a phase-changeable drug-delivery nanosystem with programmable low-intensity focused ultrasound (LIFU) that could trigger drug-release and significantly enhance anticancer drug delivery. Methods: Liquid-gas phase-changeable perfluorocarbon (perfluoropentane) and an anticancer drug (doxorubicin) were simultaneously encapsulated in two kinds of nanodroplets. By triggering LIFU, the nanodroplets could be converted into microbubbles locally in tumor tissues for acoustic imaging and the loaded anticancer drug (doxorubicin) was released after the microbubble collapse. Based on the acoustic property of shell materials, such as shell stiffness, two types of nanodroplets (lipid-based nanodroplets and PLGA-based nanodroplets) were activated by different acoustic pressure levels. Ultrasound irradiation duration and power of LIFU were tested and selected to monitor and control the drug release from nanodroplets. Various ultrasound energies were introduced to induce the phase transition and microbubble collapse of nanodroplets in vitro (3 W/3 min for lipid nanodroplets; 8 W/3 min for PLGA nanodroplets). Results: We detected three steps in the drug-releasing profiles exhibiting the programmable patterns. Importantly, the intratumoral accumulation and distribution of the drug with LIFU exposure were significantly enhanced, and tumor proliferation was substantially inhibited. Co-delivery of two drug-loaded nanodroplets could overcome the physical barriers of tumor tissues during chemotherapy. Conclusion: Our study provides a new strategy for the efficient ultrasound-triggered chemotherapy by nanocarriers with programmable LIFU capable of achieving the on-demand drug release.
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13
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Gong L, Jiang C, Liu L, Wan S, Tan W, Ma S, Jia X, Wang M, Hu A, Shi Y, Zhang Y, Shen Y, Wang F, Chen Y. Transfection of neurotrophin-3 into neural stem cells using ultrasound with microbubbles to treat denervated muscle atrophy. Exp Ther Med 2017; 15:620-626. [PMID: 29403547 PMCID: PMC5780738 DOI: 10.3892/etm.2017.5439] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Accepted: 07/27/2017] [Indexed: 12/12/2022] Open
Abstract
Neurotrophin-3 (NT-3) has potential as a therapeutic agent for the treatment of patients with denervated muscle atrophy. However, the endogenous secretion of NT-3 is low and exogenous NT-3 lacks sufficient time to accumulate due to its short half-life. The transfection of NT-3 has been demonstrated to have a beneficial effect on denervated muscle and motor endplates. Neural stem cells (NSCs) differentiate into neurons and form motor endplate nerve-muscle connections. It has been previously demonstrated that local and noninvasive transfection can be performed using ultrasound with microbubbles (MBs). In the current study, hematoxylin and eosin, acetylcholinesterase and gold chloride staining, as well as transmission electron microscopy, were performed to verify the effects of this treatment strategy. The results demonstrated that using ultrasound with MBs for the transfection of NT-3 into NSCs, and their subsequent transplantation in vivo, attenuated the atrophy of denervated muscle and reduced motor endplate degeneration. This noninvasive, efficient and targeted treatment strategy may therefore be a potential treatment for patients with denervated muscle atrophy.
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Affiliation(s)
- Lin Gong
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Changqing Jiang
- Department of Sports Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Li Liu
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Shengxiang Wan
- Department of Sports Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Wen Tan
- Department of Sports Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Sushuang Ma
- Department of Sports Medicine, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Xiaojian Jia
- Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Biomedical Research Institute, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong 518036, P.R. China.,Shenzhen Kangning Hospital & Shenzhen Mental Health Center, Shenzhen, Guangdong 518020, P.R. China
| | - Meiwei Wang
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Azhen Hu
- Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Biomedical Research Institute, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong 518036, P.R. China
| | - Yu Shi
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China
| | - Yu Zhang
- Department of Ultrasound, The Third People's Hospital of Shenzhen, Shenzhen, Guangdong 518055, P.R. China
| | - Yuanyuan Shen
- Department of Biomedical Engineering, National Regional Key Technology Engineering Laboratory for Medical Ultrasound, Shenzhen University, Shenzhen, Guangdong 518060, P.R. China
| | - Feng Wang
- Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Biomedical Research Institute, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong 518036, P.R. China.,Shenzhen Kangning Hospital & Shenzhen Mental Health Center, Shenzhen, Guangdong 518020, P.R. China.,Department of Physiology and Neurobiology, Xinxiang Medical University, Xinxiang, Henan 453002, P.R. China
| | - Yun Chen
- Department of Ultrasound, Peking University Shenzhen Hospital, Shenzhen, Guangdong 518036, P.R. China.,Shenzhen Key Laboratory for Drug Addiction and Medication Safety, Biomedical Research Institute, Shenzhen Peking University, The Hong Kong University of Science and Technology Medical Center, Shenzhen, Guangdong 518036, P.R. China
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14
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Sheng Y, Beguin E, Nesbitt H, Kamila S, Owen J, Barnsley LC, Callan B, O'Kane C, Nomikou N, Hamoudi R, Taylor MA, Love M, Kelly P, O'Rourke D, Stride E, McHale AP, Callan JF. Magnetically responsive microbubbles as delivery vehicles for targeted sonodynamic and antimetabolite therapy of pancreatic cancer. J Control Release 2017; 262:192-200. [DOI: 10.1016/j.jconrel.2017.07.040] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 07/19/2017] [Accepted: 07/28/2017] [Indexed: 12/24/2022]
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15
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Tumor ablation using low-intensity ultrasound and sound excitable drug. J Control Release 2017; 258:67-72. [PMID: 28499816 DOI: 10.1016/j.jconrel.2017.05.009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 04/11/2017] [Accepted: 05/09/2017] [Indexed: 12/23/2022]
Abstract
The cell membrane is a semi-fluid container that defines the boundary of cells, and provides an enclosed environment for vital biological processes. A sound excitable drug (SED) that is non-cytotoxic to cells is developed to disrupt the plasma membrane under gentle ultrasound insonation, 1MHz, 1W/cm2. The frequency and power density of insonation are within the physical therapy and medical imaging windows; thus the applied ultrasound is safe and not harmful to tissues. The insertion of SEDs into the plasma membrane is not toxic to cells; however, the intruding SEDs weaken the membrane's integrity. Under insonation, the ultrasound energy destabilized the SED disrupted membranes, resulting in membrane rupture and eventual cell death. In a xenograft breast tumor model, the SED alone or the ultrasound alone caused little adverse effects to tumor tissue, while the combined treatment triggered necrosis with a brief local insonation of 3min. The described sono-membrane rupture therapy could be a safe alternative to the currently used high-energy tissue ablation technology, which uses X-rays, gamma rays, electron beams, protons, or high-intensity focused ultrasound.
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16
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Zhang K, Xu H, Jia X, Chen Y, Ma M, Sun L, Chen H. Ultrasound-Triggered Nitric Oxide Release Platform Based on Energy Transformation for Targeted Inhibition of Pancreatic Tumor. ACS NANO 2016; 10:10816-10828. [PMID: 28024356 DOI: 10.1021/acsnano.6b04921] [Citation(s) in RCA: 186] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Inspired by considerable application potential in various diseases, nitric oxide (NO) has gained increasing attention. Nevertheless, current NO release scaffolds suffer from some inevitable drawbacks, for example, high toxicity for NO donor byproducts, poor specificity, shallow penetration depth, and strong ionizing irradiation for triggers, all of which remain obstacles to clinical application. Herein, an ultrasound-triggered NO on-demand release system is constructed using natural l-arginine as NO donor and local ultrasound as trigger. The focused ultrasound can activate H2O2 to generate more oxygen-contained species (ROS) of stronger oxidation ability than H2O2 for oxidizing LA via the energy transformation from ultrasound mechanical energy to chemical energy, and thus produce more NO for ultimately suppressing the highly aggressive and lethal Panc-1 tumor. Moreover, a blood vessel-intercellular matrix-cell "relay" targeting strategy has been established and relying on it, over 7-fold higher retention of such NO release system in a subcutaneous xenograft mouse model of Panc-1 is obtained, which consequently results in a more evident inhibitory effect and a prolonged survival rate (80% ± 5% improvement in 60-day survival).
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Affiliation(s)
- Kun Zhang
- State Key Laboratory of High performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Dingxi Road, Shanghai 200050, P. R. China
- Department of Medical Ultrasound, Shanghai Tenth people's Hospital, Tongji University School of Medicine , 301 Yan-chang-zhong Road, Shanghai 200072, P. R. China
- Ultrasound Research and Education Institute, Tongji University School of Medicine , 301 Yan-chang-zhong Road, Shanghai 200072, P. R. China
| | - Huixiong Xu
- Department of Medical Ultrasound, Shanghai Tenth people's Hospital, Tongji University School of Medicine , 301 Yan-chang-zhong Road, Shanghai 200072, P. R. China
- Ultrasound Research and Education Institute, Tongji University School of Medicine , 301 Yan-chang-zhong Road, Shanghai 200072, P. R. China
| | - Xiaoqing Jia
- State Key Laboratory of High performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Dingxi Road, Shanghai 200050, P. R. China
| | - Yu Chen
- State Key Laboratory of High performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Dingxi Road, Shanghai 200050, P. R. China
| | - Ming Ma
- State Key Laboratory of High performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Dingxi Road, Shanghai 200050, P. R. China
| | - Liping Sun
- Department of Medical Ultrasound, Shanghai Tenth people's Hospital, Tongji University School of Medicine , 301 Yan-chang-zhong Road, Shanghai 200072, P. R. China
| | - Hangrong Chen
- State Key Laboratory of High performance Ceramics and Superfine Microstructures, Shanghai Institute of Ceramics, Chinese Academy of Sciences , 1295 Dingxi Road, Shanghai 200050, P. R. China
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17
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Lai P, Tarapacki C, Tran WT, El Kaffas A, Lee J, Hupple C, Iradji S, Giles A, Al-Mahrouki A, Czarnota GJ. Breast tumor response to ultrasound mediated excitation of microbubbles and radiation therapy in vivo. Oncoscience 2016; 3:98-108. [PMID: 27226983 PMCID: PMC4872648 DOI: 10.18632/oncoscience.299] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2016] [Accepted: 03/01/2016] [Indexed: 01/03/2023] Open
Abstract
Acoustically stimulated microbubbles have been demonstrated to perturb endothelial cells of the vasculature resulting in biological effects. In the present study, vascular and tumor response to ultrasound-stimulated microbubble and radiation treatment was investigated in vivo to identify effects on the blood vessel endothelium. Mice bearing breast cancer tumors (MDA-MB-231) were exposed to ultrasound after intravenous injection of microbubbles at different concentrations, and radiation at different doses (0, 2, and 8 Gy). Mice were sacrificed 12 and 24 hours after treatment for histopathological analysis. Tumor growth delay was assessed for up to 28 days after treatment. The results demonstrated additive antitumor and antivascular effects when ultrasound stimulated microbubbles were combined with radiation. Results indicated tumor cell apoptosis, vascular leakage, a decrease in tumor vasculature, a delay in tumor growth and an overall tumor disruption. When coupled with radiation, ultrasound-stimulated microbubbles elicited synergistic anti-tumor and antivascular effects by acting as a radioenhancing agent in breast tumor blood vessels. The present study demonstrates ultrasound driven microbubbles as a novel form of targeted antiangiogenic therapy in a breast cancer xenograft model that can potentiate additive effects to radiation in vivo.
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Affiliation(s)
- Priscilla Lai
- Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Christine Tarapacki
- Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada; Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - William T Tran
- Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Ahmed El Kaffas
- Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada; Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Justin Lee
- Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada; Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Clinton Hupple
- Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada; Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Sarah Iradji
- Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
| | - Anoja Giles
- Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Azza Al-Mahrouki
- Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Gregory J Czarnota
- Radiation Oncology, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Radiation Oncology, University of Toronto, Toronto, Ontario, Canada; Imaging Research, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada; Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada
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18
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Shi M, Liu B, Liu G, Wang P, Yang M, Li Y, Zhou J. Low intensity-pulsed ultrasound induced apoptosis of human hepatocellular carcinoma cells in vitro. ULTRASONICS 2016; 64:43-53. [PMID: 26231998 DOI: 10.1016/j.ultras.2015.07.011] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 07/18/2015] [Accepted: 07/21/2015] [Indexed: 05/15/2023]
Abstract
The present study was conducted to determine whether low intensity-pulsed ultrasound (LIPUS) could induce apoptosis of human hepatocellular carcinoma cells, SMMC-7721, and to define the mechanism of ultrasound-induced apoptosis, in vitro. MTT assay was used to measure cell proliferation. Apoptosis was investigated by multiple methods such as flow cytometry, DNA fragmentation, Ca(2+) mobilizations, pro- and anti-apoptotic protein expression, and light as well as ultramicroscopic morphology. The results provide evidence that LIPUS induced a dose-dependent effect on cell viability and apoptosis of SMMC-7721 cells. Specifically, exposure of cells to >0.5 W/cm(2) intensity significantly increased cell apoptosis, caused shifts in cell cycle phase, and induced structural changes. Ultrasound significantly increased intracellular Ca(2+) concentrations and modulated expression of caspase-3, Bcl-2 and Bax. The findings suggest that this novel technology can be used to induce SMMC-7721 apoptosis via the Ca(2+)/mitochondrial pathway and could potentially be of clinical use for the treatment of hepatocellular carcinoma (SMMC-7721 cell line) and other cancers.
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Affiliation(s)
- Mingfang Shi
- Department of Rehabilitation, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Bangzhong Liu
- Department of Rehabilitation, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
| | - Guanghua Liu
- Department of Rehabilitation, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Ping Wang
- Department of Rehabilitation, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Mingzhen Yang
- Department of Rehabilitation, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yun Li
- Department of Rehabilitation, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Jian Zhou
- Liver Cancer Institute, Zhongshan Hospital, Fudan University, Shanghai 200032, China
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19
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Luo H, Wang X, Zhang R, Chen Y, Shu Y, Li H, Chen H. Patient-Specific Therapy via Cell-Reprogramming Technology: a Curative Potential for Patients with Diabetes. NANOSCALE RESEARCH LETTERS 2015; 10:496. [PMID: 26714858 PMCID: PMC4695475 DOI: 10.1186/s11671-015-1193-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/29/2015] [Accepted: 12/12/2015] [Indexed: 06/05/2023]
Abstract
Gene therapeutics provides great opportunities for curing diabetes. Numerous attempts have been made to establish a safe and high-efficiency gene delivery strategy, but all of them are unsuccessful. To achieve an ideal transfection, a novel gene delivery strategy was presented in this research. The novel system proposed was transfection mediated by the combination of ultrasound with microbubbles and cross-linked polyethylenimines (PEIs). Ultrasound with microbubbles enhances the permeability of target cells; moreover, cross-linked PEIs enabled DNA to escape from endosomes into the cytoplasm. If the proposed method is feasible and effective, the endogenous secretion system of insulin would be re-established in patients with diabetes.
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Affiliation(s)
- Haizhao Luo
- Department of Endocrinology, Nanhai Hospital, Southern Medical University, No. 40, Fo Ping Road, Foshan, 528200, China.
| | - Xianbao Wang
- Department of Cardiology, Zhujiang Hospital, Southern Medical University, No. 253, Gong Ye Road, Guangzhou, 510282, China.
| | - Ruyi Zhang
- Department of Endocrinology, Guangzhou Red Cross Hospital, No. 396, Tongfu Zhong Road, Guangzhou, 510220, China.
| | - Youping Chen
- Department of Endocrinology, Nanhai Hospital, Southern Medical University, No. 40, Fo Ping Road, Foshan, 528200, China.
| | - Yi Shu
- Department of Endocrinology, Nanhai Hospital, Southern Medical University, No. 40, Fo Ping Road, Foshan, 528200, China.
| | - Huixian Li
- Department of Endocrinology, Nanhai Hospital, Southern Medical University, No. 40, Fo Ping Road, Foshan, 528200, China.
| | - Hong Chen
- Department of Endocrinology, Zhujiang Hospital, Southern Medical University, No. 253, Gong Ye Road, Guangzhou, 510282, China.
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Wang YU, Chen YN, Zhang W, Yang YU, Bai WK, Shen E, Hu B. Upregulation of ULK1 expression in PC-3 cells following tumor protein P53 transfection by sonoporation. Oncol Lett 2015; 11:699-704. [PMID: 26870270 DOI: 10.3892/ol.2015.3946] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2014] [Accepted: 08/07/2015] [Indexed: 11/06/2022] Open
Abstract
The aim of the present study was to investigate whether ultrasound combined with microbubbles was able to enhance liposome-mediated transfection of genes into human prostate cancer cells, and to examine the association between autophagy and tumor protein P53 (P53). An MTT assay was used to evaluate cell viability, while flow cytometry and fluorescence microscopy were used to measure gene transfection efficiency. Autophagy was observed using transmission electron microscopy. Reverse transcription-polymerase chain reaction (RT-PCR) and western blot analysis were used to assess the expression of autophagy-associated genes. The results of the present study revealed that cell viability was significantly reduced following successfully enhanced transfection of P53 by ultrasound combined with microbubbles. In addition, serine/threonine-protein kinase ULK1 levels were simultaneously upregulated. Castration-resistant prostate cancer is difficult to treat and is investigated in the present study. P53 has a significant role in a number of key biological functions, including DNA repair, apoptosis, cell cycle, autophagy, senescence and angiogenesis. Prior to the present study, to the best of our knowledge, increased transfection efficiency and reduced side effects have been difficult to achieve. Ultrasound is considered to be a 'gentle' technique that may be able to achieve increased transfection efficiency and reduced side effects. The results of the present study highlight a potential novel therapeutic strategy for the treatment of prostate cancer.
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Affiliation(s)
- Y U Wang
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai 200233, P.R. China
| | - Yi-Ni Chen
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai 200233, P.R. China
| | - Wei Zhang
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai 200233, P.R. China
| | - Y U Yang
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai 200233, P.R. China
| | - Wen-Kun Bai
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai 200233, P.R. China
| | - E Shen
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai 200233, P.R. China
| | - Bing Hu
- Department of Ultrasound in Medicine, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai 200233, P.R. China
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Zhao L, Feng Y, Shi A, Zong Y, Wan M. Apoptosis Induced by Microbubble-Assisted Acoustic Cavitation in K562 Cells: The Predominant Role of the Cyclosporin A-Dependent Mitochondrial Permeability Transition Pore. ULTRASOUND IN MEDICINE & BIOLOGY 2015; 41:2755-64. [PMID: 26164288 DOI: 10.1016/j.ultrasmedbio.2015.05.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2014] [Revised: 05/15/2015] [Accepted: 05/25/2015] [Indexed: 05/24/2023]
Abstract
Acoustic cavitation of microbubbles has been described as inducing tumor cell apoptosis that is partly associated with mitochondrial dysfunction; however, the exact mechanisms have not been fully characterized. Here, low-intensity pulsed ultrasound (1 MHz, 0.3-MPa peak negative pressure, 10% duty cycle and 1-kHz pulse repetition frequency) was applied to K562 chronic myelogenous leukemia cells for 1 min with 10% (v/v) SonoVue microbubbles. After ultrasound exposure, the apoptotic index was determined by flow cytometry with annexin V-fluorescein isothiocyanate/propidium iodide. In addition, mitochondrial membrane potential (ΔΨm) was determined with the JC-1 assay. Translocation of apoptosis-associated protein cytochrome c was evaluated by Western blotting. We found that microbubble-assisted acoustic cavitation can increase the cellular apoptotic index, mitochondrial depolarization and cytochrome c release in K562 cells, compared with ultrasound treatment alone. Furthermore, mitochondrial dysfunction and apoptosis were significantly inhibited by cyclosporin A, a classic inhibitor of the mitochondrial permeability transition pore; however, the inhibitor of Bax protein, Bax-inhibiting peptide, could not suppress these effects. Our results suggest that mitochondrial permeability transition pore opening is involved in mitochondrial dysfunction after exposure to microbubble-assisted acoustic cavitation. Moreover, the release of cytochrome c from the mitochondria is dependent on cyclosporin A-sensitive mitochondrial permeability transition pore opening, but not formation of the Bax-voltage dependent anion channel complex or Bax oligomeric pores. These data provide more insight into the mechanisms underlying mitochondrial dysfunction induced by acoustic cavitation and can be used as a basis for therapy.
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Affiliation(s)
- Lu Zhao
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi' an Jiaotong University, Xi' an, China
| | - Yi Feng
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi' an Jiaotong University, Xi' an, China.
| | - Aiwei Shi
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi' an Jiaotong University, Xi' an, China
| | - Yujin Zong
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi' an Jiaotong University, Xi' an, China
| | - Mingxi Wan
- Key Laboratory of Biomedical Information Engineering of Ministry of Education, Department of Biomedical Engineering, School of Life Science and Technology, Xi' an Jiaotong University, Xi' an, China.
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Yousefian B, Firoozabadi SM, Mokhtari-Dizaji M. Sonochemotherapy of breast adenocarcinoma: an experimental in vivo model. J Ultrasound 2015; 18:165-71. [PMID: 26191104 PMCID: PMC4504854 DOI: 10.1007/s40477-014-0120-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Accepted: 02/12/2014] [Indexed: 11/13/2022] Open
Abstract
Purpose Because the cytotoxic potential of hydrophilic drugs like bleomycin (BLM) is restricted by its low membrane permeability, the application of low-intensity ultrasound (US) on growing tumor cells enhances intracellular delivery of BLM after intratumoral administration, thereby potentiating its cytotoxicity. In the present study, the in vivo cell membrane permeability enhancement with US (1 MHz, 2, 5, and 10 min, ISPTA = 2 W/cm2) is compared with the murine model of breast adenocarcinoma in BALB/c mice. Methods Tumor induction was performed through a homograft surgery procedure. Mice were anesthetized before putting them in sonication situations. Sonications were done in an aquarium. Seven groups of the tumor-bearing mice, each consisting of eight mice, were sonicated without or after intratumoral injection of 0.1 ml BLM at different exposure times. The tumor volume was evaluated to assess the growth process by use of a digital caliper. Results The results show that the BLM control group has a significant difference with BLM plus 10 min US on day 2 (p < 0.05). There is a significant difference between 2- and 10-min sonication on days 8 and 10 also. The difference between the Only US group and the other groups except Sham US was significant too (p < 0.05). Significant differences were seen only between the BLM plus US groups with Sham US and Only US control groups. Conclusion It has been concluded that for significant permeabilization of the cell membrane, sonication time for more than 10 min is required. Significant difference between the Only US and other groups indicates that US has a promoting effect on cell division procedure, in spite of the no-carcinogen effect of the US.
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Affiliation(s)
| | | | - Manijhe Mokhtari-Dizaji
- Department of Medical Physics, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran
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Yazaki Y, Oyane A, Sogo Y, Ito A, Yamazaki A, Tsurushima H. Area-specific cell stimulation via surface-mediated gene transfer using apatite-based composite layers. Int J Mol Sci 2015; 16:8294-309. [PMID: 25874757 PMCID: PMC4425081 DOI: 10.3390/ijms16048294] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Revised: 03/27/2015] [Accepted: 03/30/2015] [Indexed: 11/16/2022] Open
Abstract
Surface-mediated gene transfer systems using biocompatible calcium phosphate (CaP)-based composite layers have attracted attention as a tool for controlling cell behaviors. In the present study we aimed to demonstrate the potential of CaP-based composite layers to mediate area-specific dual gene transfer and to stimulate cells on an area-by-area basis in the same well. For this purpose we prepared two pairs of DNA–fibronectin–apatite composite (DF-Ap) layers using a pair of reporter genes and pair of differentiation factor genes. The results of the area-specific dual gene transfer successfully demonstrated that the cells cultured on a pair of DF-Ap layers that were adjacently placed in the same well showed specific gene expression patterns depending on the gene that was immobilized in theunderlying layer. Moreover, preliminary real-time PCR results indicated that multipotential C3H10T1/2 cells may have a potential to change into different types of cells depending on the differentiation factor gene that was immobilized in the underlying layer, even in the same well. Because DF-Ap layers have a potential to mediate area-specific cell stimulation on their surfaces, they could be useful in tissue engineering applications.
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Affiliation(s)
- Yushin Yazaki
- Department of Resources and Environmental Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan.
- Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology, Central 4, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562, Japan.
| | - Ayako Oyane
- Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology, Central 4, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562, Japan.
| | - Yu Sogo
- Health Research Institute, National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
| | - Atsuo Ito
- Health Research Institute, National Institute of Advanced Industrial Science and Technology, Central 6, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8566, Japan.
| | - Atsushi Yamazaki
- Department of Resources and Environmental Engineering, Waseda University, 3-4-1 Okubo, Shinjuku, Tokyo 169-8555, Japan.
| | - Hideo Tsurushima
- Nanomaterials Research Institute, National Institute of Advanced Industrial Science and Technology, Central 4, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8562, Japan.
- Department of Neurosurgery, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennoudai, Tsukuba, Ibaraki 305-8575, Japan.
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Wood AKW, Sehgal CM. A review of low-intensity ultrasound for cancer therapy. ULTRASOUND IN MEDICINE & BIOLOGY 2015; 41:905-28. [PMID: 25728459 PMCID: PMC4362523 DOI: 10.1016/j.ultrasmedbio.2014.11.019] [Citation(s) in RCA: 199] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Revised: 11/13/2014] [Accepted: 11/24/2014] [Indexed: 05/05/2023]
Abstract
The literature describing the use of low-intensity ultrasound in four major areas of cancer therapy-sonodynamic therapy, ultrasound-mediated chemotherapy, ultrasound-mediated gene delivery and anti-vascular ultrasound therapy-was reviewed. Each technique consistently resulted in the death of cancer cells, and the bio-effects of ultrasound were attributed primarily to thermal actions and inertial cavitation. In each therapeutic modality, theranostic contrast agents composed of microbubbles played a role in both therapy and vascular imaging. The development of these agents is important as it establishes a therapeutic-diagnostic platform that can monitor the success of anti-cancer therapy. Little attention, however, has been given either to the direct assessment of the mechanisms underlying the observed bio-effects or to the viability of these therapies in naturally occurring cancers in larger mammals; if such investigations provided encouraging data, there could be prompt application of a therapy technique in the treatment of cancer patients.
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Affiliation(s)
- Andrew K W Wood
- Department Clinical Studies, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA
| | - Chandra M Sehgal
- Department of Radiology, School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
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Zhou Y, Gu H, Xu Y, Li F, Kuang S, Wang Z, Zhou X, Ma H, Li P, Zheng Y, Ran H, Jian J, Zhao Y, Song W, Wang Q, Wang D. Targeted antiangiogenesis gene therapy using targeted cationic microbubbles conjugated with CD105 antibody compared with untargeted cationic and neutral microbubbles. Theranostics 2015; 5:399-417. [PMID: 25699099 PMCID: PMC4329503 DOI: 10.7150/thno.10351] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2014] [Accepted: 01/02/2015] [Indexed: 12/03/2022] Open
Abstract
Objective This study aimed to develop targeted cationic microbubbles conjugated with a CD105 antibody (CMB105) for use in targeted vascular endothelial cell gene therapy and ultrasound imaging. We compared the results with untargeted cationic microbubbles (CMB) and neutral microbubbles (NMB). Methods CMB105 were prepared and compared with untargeted CMB and NMB. First, the microbubbles were characterized in terms of size, zeta-potential, antibody binding ability and plasmid DNA loading capacity. A tumor model of subcutaneous breast cancer in nude mice was used for our experiments. The ability of different types of microbubbles to target HUVECs in vitro and tumor neovascularization in vivo was measured. The endostatin gene was selected for its outstanding antiangiogenesis effect. For in vitro experiments, the transfection efficiency and cell cycle were analyzed using flow cytometry, and the transcription and expression of endostatin were measured by qPCR and Western blotting, respectively. Vascular tube cavity formation and tumor cell invasion were used to evaluate the antiangiogenesis gene therapy efficiency in vitro. Tumors were exposed to ultrasound irradiation with different types of microbubbles, and the gene therapy effects were investigated by detecting apoptosis induction and changes in tumor volume. Results CMB105 and CMB differed significantly from NMB in terms of zeta-potential, and the DNA loading capacities were 16.76±1.75 μg, 18.21±1.22 μg, and 0.48±0.04 μg per 5×108 microbubbles, respectively. The charge coupling of plasmid DNA to CMB105 was not affected by the presence of the CD105 antibody. Both CMB105 and CMB could target to HUVECs in vitro, whereas only CMB105 could target to tumor neovascularization in vivo. In in vitro experiments, the transfection efficiency of CMB105 was 24.7-fold higher than the transfection efficiency of NMB and 1.47-fold higher than the transfection efficiency of CMB (P<0.05). With ultrasound-targeted microbubble destruction (UTMD)-mediated gene therapy, the transcription and expression of endostatin were the highest in the CMB105 group (P<0.001); the antiangiogenesis effect and inhibition of tumor cells invasion was better with CMB105 than CMB or NMB in vitro (P<0.01). After gene therapy, the tumor volumes of CMB105 group were significantly smaller than that of CMB and NMB, and many tumor cells had begun apoptosis in the CMB105 group, which had the highest apoptosis index (P<0.001). Conclusions As a contrast agent and plasmid carrier, CMB105 can be used not only for targeted ultrasound imaging but also for targeted gene therapy both in vitro and in vivo. The plasmid DNA binding ability of the CMB was not affected by conjugation of the CMB with the CD105 antibody, and because of its targeting ability, the gene transfection efficiency and therapeutic effect were better compared with the untargeted CMB and NMB. The advantages of targeted gene therapy with CMB105 in vivo were more prominent than with CMB or NMB because neither can target the endothelia in vivo.
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Chen Y, Chen H, Shi J. Nanobiotechnology promotes noninvasive high-intensity focused ultrasound cancer surgery. Adv Healthc Mater 2015; 4:158-65. [PMID: 24898413 DOI: 10.1002/adhm.201400127] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 04/12/2014] [Indexed: 01/20/2023]
Abstract
The successful cancer eradication in a noninvasive manner is the ultimate objective in the fight against cancer. As a "bloodless scalpel," high-intensity focused ultrasound (HIFU) is regarded as one of the most promising and representative noninvasive therapeutic modalities for cancer surgery. However, large-scale clinical applications of HIFU are still in their infancy because of critical efficiency and safety issues which remain to be solved. Fortunately, recently developed nanobiotechnology provides an alternative efficient approach to improve such important issues in HIFU, especially for cancer therapy. This Research News presents the very recent exciting progresses on the elaborate design and fabrication of organic, inorganic, and organic/inorganic hybrid nanoparticles for enhancing the HIFU ablation efficiency against tumor tissues. It is highly expected that this Research News can arouse more extensive research enthusiasm on the development of functional nanomaterials for highly efficient HIFU-based synergistic therapy, which will give a promising noninvasive therapeutic modality for the successful cancer therapy with minimal damage to surrounding normal tissues, due to the noninvasive and site-specific therapeutic features of HIFU.
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Affiliation(s)
- Yu Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures; Shanghai Institute of Ceramics, Chinese Academy of Sciences; 1295 Ding-Xi Road Shanghai 200050 P. R. China
| | - Hangrong Chen
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures; Shanghai Institute of Ceramics, Chinese Academy of Sciences; 1295 Ding-Xi Road Shanghai 200050 P. R. China
| | - Jianlin Shi
- State Key Laboratory of High Performance Ceramics and Superfine Microstructures; Shanghai Institute of Ceramics, Chinese Academy of Sciences; 1295 Ding-Xi Road Shanghai 200050 P. R. China
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27
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Targeted Drug Delivery Systems: Strategies and Challenges. ADVANCES IN DELIVERY SCIENCE AND TECHNOLOGY 2015. [DOI: 10.1007/978-3-319-11355-5_1] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
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Li T, Khokhlova TD, Sapozhnikov OA, O'Donnell M, Hwang JH. A new active cavitation mapping technique for pulsed HIFU applications--bubble Doppler. IEEE TRANSACTIONS ON ULTRASONICS, FERROELECTRICS, AND FREQUENCY CONTROL 2014; 61:1698-708. [PMID: 25265178 PMCID: PMC4454370 DOI: 10.1109/tuffc.2014.006502] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
In this work, a new active cavitation mapping technique for pulsed high-intensity focused ultrasound (pHIFU) applications termed bubble Doppler is proposed and its feasibility is tested in tissue-mimicking gel phantoms. pHIFU therapy uses short pulses, delivered at low pulse repetition frequency, to cause transient bubble activity that has been shown to enhance drug and gene delivery to tissues. The current gold standard for detecting and monitoring cavitation activity during pHIFU treatments is passive cavitation detection (PCD), which provides minimal information on the spatial distribution of the bubbles. B-mode imaging can detect hyperecho formation, but has very limited sensitivity, especially to small, transient microbubbles. The bubble Doppler method proposed here is based on a fusion of the adaptations of three Doppler techniques that had been previously developed for imaging of ultrasound contrast agents-color Doppler, pulse-inversion Doppler, and decorrelation Doppler. Doppler ensemble pulses were interleaved with therapeutic pHIFU pulses using three different pulse sequences and standard Doppler processing was applied to the received echoes. The information yielded by each of the techniques on the distribution and characteristics of pHIFU-induced cavitation bubbles was evaluated separately, and found to be complementary. The unified approach-bubble Doppler-was then proposed to both spatially map the presence of transient bubbles and to estimate their sizes and the degree of nonlinearity.
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Forbrich A, Paproski R, Hitt M, Zemp R. Comparing efficiency of micro-RNA and mRNA biomarker liberation with microbubble-enhanced ultrasound exposure. ULTRASOUND IN MEDICINE & BIOLOGY 2014; 40:2207-2216. [PMID: 25023097 DOI: 10.1016/j.ultrasmedbio.2014.05.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/04/2012] [Revised: 05/01/2014] [Accepted: 05/07/2014] [Indexed: 06/03/2023]
Abstract
Blood biomarkers are potentially powerful diagnostic tools that are limited clinically by low concentrations, the inability to determine biomarker origin and unknown patient baseline. Recently, ultrasound has been shown to liberate proteins and large mRNA biomarkers, overcoming many of these limitations. We have since demonstrated that adding lipid-stabilized microbubbles elevates mRNA concentration an order of magnitude compared with ultrasound without microbubbles, in vitro. Unfortunately the large size of some mRNA molecules may limit efficiency of release and hinder efficacy as an ultrasound-liberated biomarker. We hypothesize that smaller molecules will be released more efficiently with ultrasound than larger molecules. Although investigation of large libraries of biomarkers should be performed to fully validate this hypothesis, we focus on a small subset of mRNA and micro-RNAs. Specifically, we focus on miR-21 (22 base pairs [bp]), which is upregulated in certain forms of cancer, compared with previously investigated mammaglobin mRNA (502 bp). We also report release of micro-RNA miR-155 (22 bp) and housekeeping rRNA S18 (1869 bp). More than 10 million additional miR-21 copies per 100,000 cells are released with ultrasound-microbubble exposure. The low- molecular-weight miR-21 proved to be liberated 50 times more efficiently than high-molecular-weight mammaglobin mRNA, releasing orders of magnitude more miR-21 than mammaglobin mRNA under comparable conditions.
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Affiliation(s)
- Alex Forbrich
- Department of Electrical & Computer Engineering, University of Alberta, Edmonton, AB T6G 2V4, Canada
| | - Robert Paproski
- Department of Electrical & Computer Engineering, University of Alberta, Edmonton, AB T6G 2V4, Canada
| | - Mary Hitt
- Department of Experimental Oncology, Cross Cancer Institute, University of Alberta, Edmonton, AB T6G 2V4, Canada
| | - Roger Zemp
- Department of Electrical & Computer Engineering, University of Alberta, Edmonton, AB T6G 2V4, Canada.
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Effects of microbubble size on ultrasound-mediated gene transfection in auditory cells. BIOMED RESEARCH INTERNATIONAL 2014; 2014:840852. [PMID: 25254216 PMCID: PMC4164849 DOI: 10.1155/2014/840852] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Accepted: 07/13/2014] [Indexed: 11/17/2022]
Abstract
Gene therapy for sensorineural hearing loss has recently been used to insert genes encoding functional proteins to preserve, protect, or even regenerate hair cells in the inner ear. Our previous study demonstrated a microbubble- (MB-)facilitated ultrasound (US) technique for delivering therapeutic medication to the inner ear. The present study investigated whether MB-US techniques help to enhance the efficiency of gene transfection by means of cationic liposomes on HEI-OC1 auditory cells and whether MBs of different sizes affect such efficiency. Our results demonstrated that the size of MBs was proportional to the concentration of albumin or dextrose. At a constant US power density, using 0.66, 1.32, and 2.83 μm albumin-shelled MBs increased the transfection rate as compared to the control by 30.6%, 54.1%, and 84.7%, respectively; likewise, using 1.39, 2.12, and 3.47 μm albumin-dextrose-shelled MBs increased the transfection rates by 15.9%, 34.3%, and 82.7%, respectively. The results indicate that MB-US is an effective technique to facilitate gene transfer on auditory cells in vitro. Such size-dependent MB oscillation behavior in the presence of US plays a role in enhancing gene transfer, and by manipulating the concentration of albumin or dextrose, MBs of different sizes can be produced.
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Paproski RJ, Forbrich A, Hitt M, Zemp R. RNA biomarker release with ultrasound and phase-change nanodroplets. ULTRASOUND IN MEDICINE & BIOLOGY 2014; 40:1847-1856. [PMID: 24792584 DOI: 10.1016/j.ultrasmedbio.2014.01.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 01/07/2014] [Accepted: 01/09/2014] [Indexed: 06/03/2023]
Abstract
Microbubbles driven by ultrasound are capable of permeabilizing cell membranes and allowing biomarkers or therapeutics to exit from or enter cancer cells, respectively. Unfortunately, the relatively large size of microbubbles prevents extravasation. Lipid-based perfluorobutane microbubbles can be made seven-fold smaller by pressurization, creating 430-nm nanodroplets. The present study compares microbubbles and nanodroplets with respect to their ability to enhance miR-21 and mammaglobin mRNA release from cultured ZR-75-1 cells. Mammaglobin mRNA and miR-21 release increased with escalating concentrations of nanodroplets up to, respectively, 25- and 42-fold with 2% nanodroplets (v/v), compared with pre-ultrasound levels, whereas cell viability decreased to 62.4%. Sonication of ZR-75-1 cells incubated with microbubbles or nanodroplets caused relatively similar levels of cell death and miR-21 release, suggesting that nanodroplets are similar to microbubbles in enhancing cell permeability, but may be more advantageous because of their smaller size, which may allow extravasation through leaky tumor vasculature.
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Affiliation(s)
- Robert J Paproski
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Alexander Forbrich
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta, Canada
| | - Mary Hitt
- Department of Oncology, University of Alberta, Edmonton, Alberta, Canada
| | - Roger Zemp
- Department of Electrical and Computer Engineering, University of Alberta, Edmonton, Alberta, Canada.
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Abstract
Ultrasound-mediated gene delivery with microbubbles has emerged as an attractive nonviral vector system for site-specific and noninvasive gene therapy. Ultrasound promotes intracellular uptake of therapeutic agents, particularly in the presence of microbubbles, by increasing vascular and cell membrane permeability. Several preclinical studies have reported successful gene delivery into solid tumors with significant therapeutic effects using this novel approach. This review provides background information on gene therapy and ultrasound bioeffects and discusses the current progress and overall perspectives on the application of ultrasound and microbubble-mediated gene delivery in cancer.
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Hu Y, Wan JMF, Yu ACH. Membrane perforation and recovery dynamics in microbubble-mediated sonoporation. ULTRASOUND IN MEDICINE & BIOLOGY 2013; 39:2393-405. [PMID: 24063956 DOI: 10.1016/j.ultrasmedbio.2013.08.003] [Citation(s) in RCA: 137] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2013] [Revised: 06/10/2013] [Accepted: 08/04/2013] [Indexed: 05/05/2023]
Abstract
Transient sonoporation can essentially be epitomized by two fundamental processes: acoustically induced membrane perforation and its subsequent resealing. To provide insight into these processes, this article presents a new series of direct evidence on the membrane-level dynamics during and after an episode of sonoporation. Our direct observations were obtained from anchored fetal fibroblasts whose membrane topography was imaged in situ using real-time confocal microscopy. To facilitate controlled sonoporation at the single-cell level, microbubbles that can passively adhere to the cell membrane were first introduced at a 1:1 cell-to-bubble ratio. Single-pulse ultrasound exposure (1-MHz frequency, 10-cycle pulse duration, 0.85-MPa peak negative pressure in situ) was then applied to trigger microbubble pulsation/collapse, which, in turn, instigated membrane perforation. With this protocol, five membrane-level phenomena were observed: (i) localized perforation of the cell membrane was synchronized with the instant of ultrasound pulsing; (ii) perforation sites with temporal peak area <30 μm(2) were resealed successfully; (iii) during recovery, a thickened pore rim emerged, and its temporal progression corresponded with the pore closure action; (iv) membrane resealing, if successful, would generally be completed within 1 min of the onset of sonoporation, and the resealing time constant was estimated to be below 20 s; (v) membrane resealing would fail for overly large pores (>100 μm(2)) or in the absence of extracellular calcium ions. These findings serve to underscore the spatiotemporal complexity of membrane-level dynamics in sonoporation.
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Affiliation(s)
- Yaxin Hu
- Medical Engineering Program, University of Hong Kong, Pokfulam, Hong Kong
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Zhao YZ, Du LN, Lu CT, Jin YG, Ge SP. Potential and problems in ultrasound-responsive drug delivery systems. Int J Nanomedicine 2013; 8:1621-33. [PMID: 23637531 PMCID: PMC3635663 DOI: 10.2147/ijn.s43589] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Ultrasound is an important local stimulus for triggering drug release at the target tissue. Ultrasound-responsive drug delivery systems (URDDS) have become an important research focus in targeted therapy. URDDS include many different formulations, such as microbubbles, nanobubbles, nanodroplets, liposomes, emulsions, and micelles. Drugs that can be loaded into URDDS include small molecules, biomacromolecules, and inorganic substances. Fields of clinical application include anticancer therapy, treatment of ischemic myocardium, induction of an immune response, cartilage tissue engineering, transdermal drug delivery, treatment of Huntington’s disease, thrombolysis, and disruption of the blood–brain barrier. This review focuses on recent advances in URDDS, and discusses their formulations, clinical application, and problems, as well as a perspective on their potential use in the future.
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Affiliation(s)
- Ying-Zheng Zhao
- Wenzhou Medical College, Wenzhou City, Zhejiang Province, People's Republic of China
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Nomikou N, Feichtinger GA, Redl H, McHale AP. Ultrasound-mediated gene transfer (sonoporation) in fibrin-based matrices: potential for use in tissue regeneration. J Tissue Eng Regen Med 2013; 10:29-39. [PMID: 23596105 DOI: 10.1002/term.1730] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2012] [Revised: 12/19/2012] [Accepted: 01/29/2013] [Indexed: 12/16/2022]
Abstract
It has been suggested that gene transfer into donor cells is an efficient and practical means of locally supplying requisite growth factors for applications in tissue regeneration. Here we describe, for the first time, an ultrasound-mediated system that can non-invasively facilitate gene transfer into cells entrapped within fibrin-based matrices. Since ultrasound-mediated gene transfer is enhanced using microbubbles, we compared the efficacy of neutral and cationic forms of these reagents on the ultrasound-stimulated gene transfer process in gel matrices. In doing so we demonstrated the beneficial effects associated with the use of cationic microbubble preparations that interact directly with cells and nucleic acid within matrices. In some cases, gene expression was increased two-fold in gel matrices when cationic microbubbles were compared with neutral microbubbles. In addition, incorporating collagen into fibrin gels yielded a 25-fold increase in gene expression after application of ultrasound to microbubble-containing matrices. We suggest that this novel system may facilitate non-invasive temporal and spatial control of gene transfer in gel-based matrices for the purposes of tissue regeneration.
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Affiliation(s)
| | - Georg A Feichtinger
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Centre, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Heinz Redl
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology, AUVA Research Centre, Austrian Cluster for Tissue Regeneration, Vienna, Austria
| | - Anthony P McHale
- Department of Pharmacy and Pharmaceutical Sciences, University of Ulster, Northern Ireland
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Lamanauskas N, Novell A, Escoffre JM, Venslauskas M, Šatkauskas S, Bouakaz A. Bleomycin delivery into cancer cellsin vitrowith ultrasound and SonoVue® or BR14® microbubbles. J Drug Target 2013; 21:407-14. [DOI: 10.3109/1061186x.2012.761223] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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The use of twinkling artifact of Doppler imaging to monitor cavitation in tissue during high intensity focused ultrasound therapy. PROCEEDINGS OF MEETINGS ON ACOUSTICS. ACOUSTICAL SOCIETY OF AMERICA 2013; 19. [PMID: 26185591 DOI: 10.1121/1.4800366] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
In high intensity focused ultrasound (HIFU) therapy, it is important to monitor the presence and activity of microbubbles in tissue during treatment. The current methods, - passive cavitation detection (PCD) and B-mode imaging - have limited sensitivity, especially to small-size, non-violently-collapsing microbubbles. Here, a new method for microbubble detection is proposed, based on "twinkling" artifact (TA) of Doppler imaging. TA occurs when Color Doppler ultrasound is used to image hard objects in tissue (e.g., kidney stones), and is displayed as brightly colored spots. As demonstrated recently, TA can be explained by irregular scattering of the Doppler ensemble pulses from the fluctuating microbubbles trapped in crevices of the kidney stone. In this work, TA was used to detect cavitation in tissue and in polyacrylamide gel phantoms during pulsed 1 MHz HIFU exposures with different peak negative pressures (1.5-11 MPa). At each pressure level, the probability of cavitation occurrence was characterized using TA and the broadband signals recorded by PCD, aligned confocally with the HIFU transducer. The results indicate that TA is more sensitive to the onset of cavitation than conventional PCD detection, and allows for accurate spatial localization of the bubbles. Work supported by RFBR and NIH (EB007643, 1K01EB015745, R01CA154451).
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Physical non-viral gene delivery methods for tissue engineering. Ann Biomed Eng 2012; 41:446-68. [PMID: 23099792 DOI: 10.1007/s10439-012-0678-1] [Citation(s) in RCA: 116] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2012] [Accepted: 10/08/2012] [Indexed: 12/12/2022]
Abstract
The integration of gene therapy into tissue engineering to control differentiation and direct tissue formation is not a new concept; however, successful delivery of nucleic acids into primary cells, progenitor cells, and stem cells has proven exceptionally challenging. Viral vectors are generally highly effective at delivering nucleic acids to a variety of cell populations, both dividing and non-dividing, yet these viral vectors are marred by significant safety concerns. Non-viral vectors are preferred for gene therapy, despite lower transfection efficiencies, and possess many customizable attributes that are desirable for tissue engineering applications. However, there is no single non-viral gene delivery strategy that "fits-all" cell types and tissues. Thus, there is a compelling opportunity to examine different non-viral vectors, especially physical vectors, and compare their relative degrees of success. This review examines the advantages and disadvantages of physical non-viral methods (i.e., microinjection, ballistic gene delivery, electroporation, sonoporation, laser irradiation, magnetofection, and electric field-induced molecular vibration), with particular attention given to electroporation because of its versatility, with further special emphasis on Nucleofection™. In addition, attributes of cellular character that can be used to improve differentiation strategies are examined for tissue engineering applications. Ultimately, electroporation exhibits a high transfection efficiency in many cell types, which is highly desirable for tissue engineering applications, but electroporation and other physical non-viral gene delivery methods are still limited by poor cell viability. Overcoming the challenge of poor cell viability in highly efficient physical non-viral techniques is the key to using gene delivery to enhance tissue engineering applications.
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Nomikou N, McHale AP. Microbubble-enhanced ultrasound-mediated gene transfer--towards the development of targeted gene therapy for cancer. Int J Hyperthermia 2012; 28:300-10. [PMID: 22621732 DOI: 10.3109/02656736.2012.659235] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Ultrasound-mediated gene transfer is emerging as a possible alternative to viral gene transfer, and pre-clinical data suggest that it may play a significant role in gene therapy-based approaches to the treatment of disease. As an extracorporeal stimulus, ultrasound can non-invasively and transiently compromise cell membrane permeability (sonoporation), thereby offering the promise of delivering either genes or oligonucleotide-based therapeutics to cells and tissues in a site-specific manner. The membrane-permeabilising effects of ultrasound can be greatly enhanced using microbubble preparations, many of which have, in the past, found application as ultrasound contrast agents. Because these ultrasound-responsive agents are highly amenable to surface modification it has been suggested that they may be exploited as ultrasound-responsive nucleic acid delivery vehicles. In this article we seek to explore the potential role ultrasound, in combination with microbubble-based agents, may play in providing site-specific gene therapy-based approaches for the treatment of cancer.
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Affiliation(s)
- Nikolitsa Nomikou
- Department of Pharmacy and Pharmaceutical Sciences, University of Ulster, Coleraine, County Derry, UK
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Filho WDDA, Schneider FK, Morales REM. Evaluation of stability and size distribution of sunflower oil-coated micro bubbles for localized drug delivery. Biomed Eng Online 2012; 11:71. [PMID: 22995578 PMCID: PMC3503707 DOI: 10.1186/1475-925x-11-71] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2012] [Accepted: 09/03/2012] [Indexed: 11/18/2022] Open
Abstract
Background Micro bubbles were initially introduced as contrast agents for ultrasound examinations as they are able to modify the signal-to-noise ratio in imaging, thus improving the assessment of clinical information on human tissue. Recent developments have demonstrated the feasibility of using these bubbles as drug carriers in localized delivery. In micro fluidics devices for generation of micro bubbles, the bubbles are formed at interface of liquid gas through a strangulation process. A device that uses these features can produce micro bubbles with small size dispersion in a single step. Methods A T-junction micro fluidic device constructed using 3D prototyping was made for the production of mono dispersed micro bubbles. These micro bubbles use sunflower oil as a lipid layer. Stability studies for micro bubbles with diameters different generated from a liquid phase of the same viscosity were conducted to evaluate whether micro bubbles can be used as drug carriers. The biocompatibility of coating layer, the ability to withstand environmental pressure variations combined with echogenicity, are key factors that they can safely play the role of drug transporters. Results The normal distribution curve with small dispersion of the diameter of bubbles validates the process of generating micro bubbles with low value of variation coefficient, i.e., 0.381 at 1.90%. The results also showed the feasibility of using sunflower oil as the lipid matrix with stable population of bubbles over 217 minutes for micro bubbles with an average diameter of 313.04 μm and 121 minutes for micro bubbles with an average diameter of 73.74 μm, considering bubbles with air as gaseous phase. Conclusion The results indicate that the micro fluidic device designed can be used for producing micro bubbles with low variation coefficient using sunflower oil as a coating of micro bubbles. These carriers were stable for periods of time that are long enough for clinical applications even when regular air is used as the gas phase. Improved stability can be achieved when biocompatible gas with lower permeability is used.
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Bernard V, Mornstein V, Škorpíková J, Jaroš J. Ultrasound and cisplatin combined treatment of human melanoma cells A375--the study of sonodynamic therapy. ULTRASOUND IN MEDICINE & BIOLOGY 2012; 38:1205-1211. [PMID: 22502893 DOI: 10.1016/j.ultrasmedbio.2012.02.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 01/31/2012] [Accepted: 02/07/2012] [Indexed: 05/31/2023]
Abstract
Sonodynamic therapy, an effect of low-power ultrasound field and the anticancer drug cisplatin, was studied in vitro on human melanoma cells A375. The viability of cells has been studied by standard 3-(4,5-dimethylthiazol-2-Yl)-2,5-diphenyltetrazolium bromide viability assay according to different modes of treatment: application of cisplatin alone, exposure of ultrasound field alone, exposure to ultrasound followed by cisplatin and application of cisplatin followed by exposure to ultrasound. Ultrasound was used at a therapeutic intensity of 1 W∙cm(-2) for 10 min. Concentration of cisplatin in the cell suspension was always 2.3 μM. The results show that sonodynamic therapy is one of the possibilities of how to intensify standard cytostatic therapy. This conclusion is supported by reducing the viability of studied cells, especially 72 h after the treatment. The time sequence of application of ultrasonic field and cytostatics appears to be a significant factor affecting the changes in cell viability. Maximum suppression of viability has been found when applying the experimental design involving application of cisplatin followed by exposure to ultrasound; the final value of viability of combined affected cells was more than 10% lower than for cisplatin treatment alone.
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Affiliation(s)
- Vladan Bernard
- Department of Biophysics, Faculty of Medicine, Masaryk University, Brno, Czech Republic.
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Tamosiūnas M, Jurkonis R, Mir LM, Lukosevicius A, Venslauskas MS, Satkauskas S. Adjustment of ultrasound exposure duration to microbubble sonodestruction kinetics for optimal cell sonoporation in vitro. Technol Cancer Res Treat 2012; 11:375-87. [PMID: 22376133 DOI: 10.7785/tcrt.2012.500285] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Cell sonoporation enables the delivery of various exogenous molecules into the cells. To maximize the percentage of reversibly sonoporated cells and to increase cell viability we propose a model for implicit dosimetry for adjustment of ultrasound (US) exposure duration. The Chinese hamster ovary cell suspension was supplemented with microbubbles (MB) and exposed to US, operating at the frequency of 880kHz, with a 100% duty cycle and with an output peak negative pressure (PNP) of 500kPa for durations ranging from 0.5 to 30s. Using diagnostic B-scan imaging we showed that the majority of the MB at 500kPa US peak negative pressure undergo sonodestruction in less than a second. During this time maximal number of reversibly sonoporated cells was achieved. Increase of US exposure duration did not increase sonoporated cell number, however it induced additional cell viability decrease. Therefore aiming to achieve the highest level of reversibly sonoporated cells and also to preserve the highest level of cell viability, the duration of US exposure should not exceed the duration needed for complete MB sonodestruction.
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Affiliation(s)
- M Tamosiūnas
- Department of Biology, Faculty of Natural Sciences, Vytautas Magnus University, Vileikos 8, Kaunas LT-44404, Lithuania
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Nomikou N, Tiwari P, Trehan T, Gulati K, McHale AP. Studies on neutral, cationic and biotinylated cationic microbubbles in enhancing ultrasound-mediated gene delivery in vitro and in vivo. Acta Biomater 2012; 8:1273-80. [PMID: 21958669 DOI: 10.1016/j.actbio.2011.09.010] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2011] [Revised: 08/22/2011] [Accepted: 09/07/2011] [Indexed: 11/17/2022]
Abstract
Ultrasound-mediated gene transfer is emerging as a practical means of facilitating targeted gene expression and is significantly enhanced in the presence of exogenously added microbubbles. This study explores the influence of microbubble surface modifications on their interaction with plasmid DNA and target cells, and the functional consequences of those interactions in terms of ultrasound-mediated gene transfer. Polyethylene glycol-stabilized, lipid-shelled microbubbles with neutral (SDM201), cationic (SDM202) and biotinylated cationic (SDM302) surfaces were compared in terms of their abilities to interact with a luciferase-encoding reporter plasmid DNA and with target cells in vitro. The results demonstrate that the biotinylated cationic microbubble>cationic microbubble>neutral microbubble, in terms of their abilities to interact with target cells and to enhance ultrasound-mediated gene transfer, particularly at low microbubble concentration. The presence of a net positive charge on both cationic microbubbles promoted the formation of microbubble-nucleic acid complexes, although preformation of the complexes prior to addition to target cells inhibited the interaction between the microbubbles and target cells in vitro. The impact of these findings on potential in vitro or ex vivo therapeutic applications of microbubble-enhanced ultrasound-mediated gene transfer is discussed. All three microbubble preparations could be used to facilitate gene transfer in vivo and the potential advantages associated with the use of the cationic microbubbles for targeted gene delivery are discussed.
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Biophysical interfaces. Biophysics (Nagoya-shi) 2012. [DOI: 10.1017/cbo9781139035002.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Chew LW, Klaseboer E, Ohl SW, Khoo BC. Interaction of two differently sized oscillating bubbles in a free field. PHYSICAL REVIEW. E, STATISTICAL, NONLINEAR, AND SOFT MATTER PHYSICS 2011; 84:066307. [PMID: 22304190 DOI: 10.1103/physreve.84.066307] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2011] [Revised: 08/15/2011] [Indexed: 05/31/2023]
Abstract
Most real life bubble dynamics applications involve multiple bubbles, for example, in cavitation erosion prevention, ultrasonic baths, underwater warfare, and medical applications involving microbubble contrast agents. Most scientific dealings with bubble-bubble interaction focus on two similarly sized bubbles. In this study, the interaction between two oscillating differently sized bubbles (generated in tap water) is studied using high speed photography. Four types of bubble behavior were observed, namely, jetting toward each other, jetting away from each other, bubble coalescence, and a behavior termed the "catapult" effect. In-phase bubbles jet toward each other, while out-of-phase bubbles jet away from each other. There exists a critical phase difference that separates the two regimes. The behavior of the bubbles is fully characterized by their dimensionless separation distance, their phase difference, and their size ratio. It is also found that for bubbles with large size difference, the smaller bubble behaves similarly to a single bubble oscillating near a free surface.
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Affiliation(s)
- Lup Wai Chew
- Department of Mechanical Engineering, National University of Singapore, Kent Ridge, Singapore 119260
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Zhong W, Sit WH, Wan JMF, Yu ACH. Sonoporation induces apoptosis and cell cycle arrest in human promyelocytic leukemia cells. ULTRASOUND IN MEDICINE & BIOLOGY 2011; 37:2149-2159. [PMID: 22033133 DOI: 10.1016/j.ultrasmedbio.2011.09.012] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Revised: 09/19/2011] [Accepted: 09/20/2011] [Indexed: 05/31/2023]
Abstract
Despite being a transient biophysical phenomenon, sonoporation is known to disturb the homeostasis of living cells. This work presents new evidence on how sonoporation may lead to antiproliferation effects including cell-cycle arrest and apoptosis through disrupting various cell signaling pathways. Our findings were obtained from sonoporation experiments conducted on HL-60 human promyelocytic leukemia cells (with 1% v/v microbubbles; 1 MHz ultrasound; 0.3 or 0.5MPa peak negative pressure; 10% duty cycle; 1 kHz pulse repetition frequency; 1 min exposure period). Membrane resealing in these sonoporated cells was first verified using scanning electron microscopy. Time-lapse flow cytometry analysis of cellular deoxyribonucleic acid (DNA) contents was then performed at four post-sonoporation time points (4 h, 8 h, 12 h and 24 h). Results indicate that an increasing trend in the apoptotic cell population can be observed for at least 12 h after sonoporation, whilst viable sonoporated cells are found to temporarily accumulate in the G(2)/M (gap-2/mitosis) phase of the cell cycle. Further analysis using western blotting reveals that sonoporation-induced apoptosis involves cleavage of poly adenosine diphosphate ribose polymerase (PARP) proteins: a pro-apoptotic hallmark related to loss of DNA repair functionality. Also, mitochondrial signaling seems to have taken part in triggering this cellular event as the expression of two complementary regulators for mitochondrial release of pro-apoptotic molecules, Bcl-2 (B-cell lymphoma 2) and Bax (Bcl-2-associated X), are seen to be imbalanced in sonoporated cells. Furthermore, sonoporation is found to induce cell-cycle arrest through perturbing the expression of various cyclin and Cdk (cyclin-dependent kinase) checkpoint proteins that play an enabling role in cell-cycle progression. These bioeffects should be taken into account when using sonoporation for therapeutic purposes.
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Affiliation(s)
- Wenjing Zhong
- Medical Engineering Program, The University of Hong Kong, Hong Kong SAR
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